1047979839 has 8 divisors (see below), whose sum is σ = 1402076592. Its totient is φ = 696268160.

The previous prime is 1047979837. The next prime is 1047979853. The reversal of 1047979839 is 9389797401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1047979839 - 2¹ = 1047979837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047979837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595242 + ... + 596999.

It is an arithmetic number, because the mean of its divisors is an integer number (175259574).

Almost surely, 2^1047979839 is an apocalyptic number.

1047979839 is a deficient number, since it is larger than the sum of its proper divisors (354096753).

1047979839 is a wasteful number, since it uses less digits than its factorization.

1047979839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192537.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The square root of 1047979839 is about 32372.5167232948. The cubic root of 1047979839 is about 1015.7441020516.

The spelling of 1047979839 in words is "one billion, forty-seven million, nine hundred seventy-nine thousand, eight hundred thirty-nine".